Underperforming

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[AF>Libristes] Dudumomo
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4 May 2010 18:47:19 UTC
Topic 194909
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    Hello guys,
    I got 3 computers and one of them are underperforming. I don't know why. You might have an idea ?

    - PC 1: Intel dualcore T9400 2.53Ghz: 10500s for 1 wu (Arecibo Binary Pulsar Search (STSP)).
    - PC2: Intel Quad Q8200 2.33Ghz: 10700-11000 for 1 Wu
    - PC3: Intel Quad Q8300 2.50Ghz: 19000s ! per Wu

    Any idea ?

    Thank you.

    I will try to check my hardware

    Edit: First, I thought it was the RAM as I got only 1gb (But each WU seems to take 100mb. Then 400mb + 50mb for boinc (let's say).
    So I still got plenty of ram (It's a crunch box with Gentoo in it without any GUI)

    MyUneo, the Cupid of Services

    DanNeely
    DanNeely
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    Underperforming

    4 May 2010 21:59:31 UTC
    Message 97975
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      Check your temperatures/actual clock speeds while running. It's possible your slow machine is thermal throttling due to poor cooling.

      leks
      leks
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      RE: Edit: First, I thought

      5 May 2010 4:41:41 UTC
      Message 97976
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        Quote:

        Edit: First, I thought it was the RAM as I got only 1gb

        Check Memory Mode. Single-channel or Dual-channel??
        Single-channel reduce performance Quad Intel or AMD.

        Akos Fekete
        Akos Fekete
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        Hi! RE: I got 3

        5 May 2010 6:41:49 UTC
        Message 97977
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          Hi!

          Quote:

          I got 3 computers and one of them are underperforming. I don't know why. You might have an idea ?

          - PC2: Intel Quad Q8200 2.33Ghz: 10700-11000 for 1 Wu
          - PC3: Intel Quad Q8300 2.50Ghz: 19000s ! per Wu


          I examined the checkpoint times in some of your WUs. Your Q8300 shows a little anomaly. An other program reduces the performance.

          [AF>Libristes] Dudumomo
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          RE: Hi! I examined the

          5 May 2010 17:20:11 UTC
          Message 97978 in response to message 97977
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            Quote:

            Hi!

            I examined the checkpoint times in some of your WUs. Your Q8300 shows a little anomaly. An other program reduces the performance.

            Thank you Akosf.
            I've only installed Gentoo and BOINC on this machine... So it quite light actually. I've checked the process currently running, and apart BOINC + WU, no other process are taking ressources.

            I got 1gb ram in 1 slot. (No name)
            But, I've OCed my computer a couple of months ago. I will try to run a couple of units with the stock freq.

            I didn't have this problem with Quantum (Well, I guess...)

            Thanks for your replies guys.
            I will let you know.

            MyUneo, the Cupid of Services

            ExtraTerrestrial Apes
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            Running 2 identical RAM

            11 Sep 2010 11:05:30 UTC
            Message 97979 in response to message 97978
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              Running 2 identical RAM sticks will help performance.

              But this is not causing this huge performance difference. Could be that Linux is running in the lowest power saving state because BOINC runs at very low priority (=high nice value), so Linux thinks it's not worth waking the CPU up for that.

              This had been a "problem" under the Ubuntu 8 and 9 series if I remember correctly. Don't know how Gentoo handles it, though.

              MrS

              Scanning for our furry friends since Jan 2002

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